silver flower stud earrings

Small fine silver domed earring studs with flower married at the top.
7 mm diameter.
Hand smithed jewelry of certified green silver, with Oregon sourced stones.
Each piece is cut or cast, forged, hammered, set and polished by me.
What does sustainable green silver mean in my jewelry?
I start with fine silver which is the purest available -99.9% silver made with reclaimed/recycled metal or from third party certified, ethically mined metal.
Our jewelry is 3 time State of California WRAP Award winners for recycled content.